19658619

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7829}}^1$

素因数の和:7872

約数の個数: 20

約数和(自身を含む): 30317760

約数和(自身を除く): 10659141

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7829, 23487, 70461, 211383, 242699, 634149, 728097, 2184291, 6552873, 19658619]

約数ペア:

[(1, 19658619), (3, 6552873), (9, 2184291), (27, 728097), (31, 634149), (81, 242699), (93, 211383), (279, 70461), (837, 23487), (2511, 7829)]